Malware Analysis Report

2024-10-23 18:43

Sample ID 240609-d7jrrsdg99
Target 54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c
SHA256 54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c
Tags
391144938 cobaltstrike
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c

Threat Level: Known bad

The file 54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c was found to be: Known bad.

Malicious Activity Summary

391144938 cobaltstrike

Cobalt Strike reflective loader

Cobaltstrike family

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-09 03:39

Signatures

Cobalt Strike reflective loader

Description Indicator Process Target
N/A N/A N/A N/A

Cobaltstrike family

cobaltstrike

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 03:38

Reported

2024-06-09 03:42

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

93s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4484 wrote to memory of 1668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4484 wrote to memory of 1668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4484 wrote to memory of 1668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1668 -ip 1668

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 636

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-09 03:38

Reported

2024-06-09 03:42

Platform

win7-20240419-en

Max time kernel

118s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\54e0793cdade34f290485e001561de6e80a81b7ffc5ff94b0e2b67fdf6e20f9c.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 228

Network

N/A

Files

N/A